Greenhouse water and fertilizer watering device for forestry seedling raising

By designing a water flow regulation mechanism and a liquid homogenizing component, the problems of water flow size and liquid homogenization in forestry greenhouse seedling cultivation were solved, achieving precise irrigation and liquid homogenization according to plant needs, thus improving seedling cultivation efficiency and water resource utilization.

CN224234352UActive Publication Date: 2026-05-15GUANGXI FORESTRY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI FORESTRY RES INST
Filing Date
2025-05-24
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing water and fertilizer irrigation devices for forestry greenhouse seedling cultivation are difficult to precisely adjust the water flow and the uniformity of the mixed solution, making it difficult to meet the water and fertilizer needs of different plants, and the mixed solution is prone to sedimentation, affecting the effect.

Method used

A water and fertilizer irrigation device including a water flow regulating mechanism and a liquid homogenizing component was designed. The flow diameter of the spray hole is adjusted by adjusting the adjusting sleeve and the threaded sleeve. Combined with the movable blade plate and gear rack plate structure, the water flow size can be adjusted and the mixture can be uniformly stirred to prevent sedimentation.

Benefits of technology

It enables the adjustment of water flow according to the different needs of plants, saves water, maintains the uniformity of water and fertilizer mixture, and improves irrigation efficiency and mixing effect.

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Abstract

The utility model discloses a greenhouse water and fertilizer watering device for forestry seedling raising, and belongs to the technical field of forestry seedling raising. According to the greenhouse water and fertilizer watering device for forestry seedling culture, water is sprayed out of the water spraying holes distributed at equal intervals for irrigation, the flow path size of the water spraying holes is adjusted by rotating the input end of the water flow adjusting mechanism and the output end of the water flow adjusting mechanism, and therefore the sprayed water flow is adjusted; the appropriate irrigation water flow is adjusted according to different actually-irrigated plants, water is saved, in the reciprocating movement process of a column rod, a gear moves relative to a rack plate, and therefore the column rod synchronously rotates in the reciprocating movement process through cooperation of the rack plate and the gear; therefore, the plurality of leaf plates on the column rod continuously stir the water-fertilizer mixed liquid in the water tank, deposition of part of components is prevented, the mixing uniformity of the water-fertilizer mixed liquid in the water tank is effectively improved, and the water-fertilizer mixed liquid in the water tank always keeps a good mixing effect.
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Description

Technical Field

[0001] This utility model relates to the field of forestry seedling technology, and in particular to a greenhouse water and fertilizer irrigation device for forestry seedling cultivation. Background Technology

[0002] Forestry greenhouse seedling cultivation is a highly efficient and controllable method of seedling cultivation using modern greenhouse technology, suitable for afforestation, economic forest cultivation, and ecological restoration. Compared to traditional open-air seedling cultivation, the greenhouse environment allows for precise control of key factors such as temperature, humidity, and light, reducing the impact of extreme weather and significantly improving seed germination rate and seedling survival rate. It is particularly suitable for the cultivation of precious tree species, fast-growing and high-yield forests, and high-value-added economic forests. During the forestry greenhouse seedling cultivation process, reasonable water and fertilizer application not only meets the nutritional needs of seedlings at different growth stages but also optimizes root development and maintains their good growth condition.

[0003] In the existing technology, during the water and fertilizer application process for seedling cultivation in forestry greenhouses, water and fertilizer need to be mixed in a certain proportion, and then the water and fertilizer mixture is directly applied to the plants by hand-held water pipes. However, the water flow is not easy to adjust, and different plants have different water requirements, making it difficult to accurately adapt to different plants. At the same time, the water and fertilizer mixture is usually stored statically in a container, and some components tend to settle at the bottom of the container, affecting the mixing effect of the water and fertilizer mixture.

[0004] Therefore, there is a need for a greenhouse water and fertilizer irrigation device for forestry seedling cultivation to solve the problems mentioned in the background art. Utility Model Content

[0005] This utility model proposes a water and fertilizer irrigation device for forestry seedling cultivation greenhouses to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A water and fertilizer irrigation device for forestry seedling greenhouses includes a base plate. A fixing pipe is fixed to the top of the base plate. A connecting rod is coaxially sleeved inside the fixing pipe. A water spray cylinder is fixed to the end of the connecting rod away from the fixing pipe. Multiple water spray holes are provided through the side wall of the water spray cylinder and are arranged in a ring at equal intervals. A water flow regulating mechanism is slidably sleeved on the outside of the water spray cylinder. A water tank and a water pump are fixed to the top of the base plate. The input end of the water pump is connected to the inside of the water tank. The output end of the water pump is connected to a water delivery hose. The end of the water delivery hose away from the water pump is connected to the inside of the water spray cylinder. A liquid equalization assembly is provided at the bottom. The liquid equalization assembly includes a movable column set at the bottom. Multiple blades are fixed to the side of the column at equal intervals. A gear is fixed to one end of the column. A rack plate that meshes with the gear is fixed to the inner side wall of the bottom of the water tank.

[0008] It should be noted in the solution that the water flow adjustment mechanism includes an adjustment sleeve that is slidably sleeved on the outside of the spray tube. The adjustment sleeve has adjustment holes that are distributed along a straight line with the spray holes on its side. The size of the adjustment holes is the same as that of the spray holes. There are multiple adjustment holes that are distributed in a ring at equal intervals. A threaded sleeve is threadedly connected to the outer surface of the end of the spray tube near the connecting rod. A limit plate is fixed to the end of the spray tube away from the connecting rod. The adjustment sleeve is disposed between the limit plate and the threaded sleeve. Springs are fixed to the two sides of the limit plate and the adjustment sleeve that are close to each other. There are multiple springs that are distributed in a ring at equal intervals.

[0009] It is worth noting that the outer surface of the connecting rod is fixed with plastic clips, and multiple plastic clips are provided, which are distributed at equal intervals.

[0010] Furthermore, it should be noted that a locking bolt is threaded onto the side wall of the fixed tube, and the inner end of the locking bolt is in contact with the outer surface of the connecting rod.

[0011] Preferably, the bottom end of the base plate is connected to a caster wheel, and multiple casters are provided and symmetrically distributed.

[0012] Preferably, the bottom plate has two symmetrically distributed connecting plates fixed at the end away from the fixed tube, and a push rod is fixed to the top of the two connecting plates.

[0013] Preferably, two symmetrically distributed protrusions are fixed on the top of the water tank, and a lead screw is rotatably connected between the two protrusions. A lead screw nut is threaded onto the side of the lead screw, and a connecting rod is fixed to the lead screw nut. A rotating seat that is rotatably connected to the column rod is fixed to the bottom end of the connecting rod. A sliding groove is formed on the top surface of the water tank, and a protrusion that slides and adapts to the sliding groove is fixed to the bottom end of the lead screw nut. A servo motor is fixed to the side of one of the protrusions, and the output end of the servo motor is fixed to one end of the lead screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, when adjusting the size of the irrigation water flow, the threaded sleeve is rotated, and the threaded sleeve pushes the adjusting sleeve to move on the water spray cylinder. When the adjusting sleeve moves, it drives the adjusting hole to move, thereby adjusting the size of the flow diameter of the water spray hole and thus adjusting the size of the sprayed water flow. The appropriate irrigation water flow size can be adjusted according to the different plants being irrigated, saving water and contributing to energy conservation and environmental protection.

[0016] 2. In specific operation of this utility model, when the water sprayer is detached and held for watering, the locking bolt can be loosened to pull the connecting rod out of the fixed pipe. This allows the water sprayer to be fixed on the fixed pipe for watering, or the connecting rod can be held by hand to move the water sprayer for convenient watering, making it convenient to use.

[0017] 3. During the reciprocating movement of the column, the gear moves relative to the rack plate, thereby causing the column to rotate synchronously during the reciprocating movement through the cooperation of the rack plate and the gear. This allows multiple blades on the column to continuously agitate the water-fertilizer mixture inside the water tank, preventing the sedimentation of some components and effectively improving the mixing uniformity of the water-fertilizer mixture inside the water tank. This ensures that the water-fertilizer mixture inside the water tank always maintains a good mixing effect. The continuously moving blades continuously circulate and agitate multiple positions at the bottom of the water tank, and the direction of the blades constantly switches back and forth, avoiding the generation of unidirectional vortex during agitation, further improving the mixing uniformity of the water-fertilizer mixture. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural diagram of the homogenizing component of this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the homogenizing component of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic cross-sectional view of the homogenizing component of this utility model. Figure 2 ;

[0022] Figure 5 This is a partial schematic diagram of the water flow regulating mechanism of this utility model;

[0023] Figure 6 This is a cross-sectional schematic diagram of the water flow regulating mechanism of this utility model;

[0024] Figure 7 for Figure 6 Enlarged view of region B in the middle;

[0025] Figure 8 for Figure 6 Enlarged view of region A in the middle.

[0026] In the picture:

[0027] 1. Water flow regulating mechanism; 101. Regulating sleeve; 102. Regulating hole; 103. Spring; 104. Threaded sleeve; 105. Limiting plate; 2. Liquid equalization assembly; 201. Lead screw; 202. Convex plate; 203. Servo motor; 204. Lead screw nut; 205. Slide groove; 206. Connecting rod; 207. Rotating seat; 208. Column rod; 209. Blade plate; 210. Rack plate; 211. Gear; 3. Base plate; 4. Casters; 5. Water tank; 6. Connecting plate; 7. Push rod; 8. Water supply hose; 9. Water pump; 10. Fixing pipe; 11. Locking bolt; 12. Connecting rod; 13. Spray nozzle; 14. Plastic buckle; 15. Spray hole. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Reference Figure 1-8A water and fertilizer irrigation device for forestry seedling greenhouses includes a base plate 3. A fixing pipe 10 is fixed to the top of the base plate 3. A connecting rod 12 is coaxially sleeved inside the fixing pipe 10. A water spray cylinder 13 is fixed to the end of the connecting rod 12 away from the fixing pipe 10. Multiple water spray holes 15 are provided through the side wall of the water spray cylinder 13 and are arranged in a ring at equal intervals. A water flow regulating mechanism 1 is slidably sleeved on the outside of the water spray cylinder 13. A water tank 5 and a water pump 9 are fixed to the top of the base plate 3. The input end of the water pump 9 is connected to the inside of the water tank 5. The output end of the water pump 9 is connected to a water delivery hose 8. The end of the water delivery hose 8 away from the water pump 9 is connected to the water spray cylinder. The internal components of the water tank 5 are interconnected. A uniform liquid distribution assembly 2 is installed at the bottom of the water tank 5. The uniform liquid distribution assembly 2 includes a movable column 208 located at the bottom of the water tank 5. Multiple equally spaced blades 209 are fixed to the side of the column 208. A gear 211 is fixed to one end of the column 208. A rack plate 210 that meshes with the gear 211 is fixed to the inner wall of the bottom end of the water tank 5. During irrigation, the water pump 9 is activated. The water pump 9 pumps water from the water tank 5 into the water spray nozzle 13 through the water delivery hose 8. The water is sprayed out from the equally spaced spray holes 15 for irrigation. The water flow is adjusted by rotating the input end of the water flow regulating mechanism 1. The output end of the regulating mechanism 1 adjusts the flow diameter of the spray nozzle 15, thereby adjusting the size of the sprayed water flow. The appropriate water flow can be adjusted according to the different plants being watered, saving water and promoting energy conservation and environmental protection. The connecting rod 12 and the fixing pipe 10 are detachable, allowing the connecting rod 12 to be removed from the fixing pipe 10. This allows the spray nozzle 13 to be either fixed to the fixing pipe 10 for watering or moved by hand using the connecting rod 12 for convenient watering. During the reciprocating movement of the column rod 208, the gear 211 moves relative to the rack plate 210, thereby... The rack plate 210 and gear 211 work together to make the column rod 208 rotate synchronously during reciprocating movement. This causes the multiple blades 209 on the column rod 208 to continuously agitate the water-fertilizer mixture inside the water tank 5, preventing the sedimentation of some components and effectively improving the mixing uniformity of the water-fertilizer mixture inside the water tank 5. This ensures that the water-fertilizer mixture inside the water tank 5 always maintains a good mixing effect. The constantly moving blades 209 continuously circulate and agitate multiple positions at the bottom of the water tank 5, and the direction of the blades 209 constantly switches back and forth, avoiding the generation of unidirectional vortex during agitation, further improving the mixing uniformity of the water-fertilizer mixture.

[0030] Further as Figure 1 , Figure 5 and Figure 6As shown, it is worth noting that the water flow regulating mechanism 1 includes an regulating sleeve 101 slidably sleeved on the outside of the spray nozzle 13. Regulating holes 102 are provided through the side of the regulating sleeve 101, positioned in a straight line with the spray nozzles 15. The size of the regulating holes 102 is equal to that of the spray nozzles 15. Multiple regulating holes 102 are provided and are distributed in a ring at equal intervals. A threaded sleeve 104 is threadedly connected to the outer surface of the end of the spray nozzle 13 closest to the connecting rod 12. A limiting plate 105 is fixed to the end of the spray nozzle 13 furthest from the connecting rod 12. The regulating sleeve 101 is positioned between the limiting plate 105 and the threaded sleeve 104. Springs 103 are fixed to the two sides of the plate 105 and the adjusting sleeve 101 that are close to each other. Multiple springs 103 are arranged in a ring and are equidistantly distributed. When adjusting the water flow, the threaded sleeve 104 is rotated. The threaded sleeve 104 pushes the adjusting sleeve 101 to move on the water spray tube 13. When the adjusting sleeve 101 moves, it drives the adjusting hole 102 to move, thereby adjusting the flow diameter of the water spray hole 15 and thus adjusting the size of the water flow. The appropriate water flow can be adjusted according to the different plants being watered, saving water and contributing to energy conservation and environmental protection.

[0031] Further as Figure 5 As shown, it is worth noting that the outer surface of the connecting rod 12 is fixed with plastic clips 14. Multiple plastic clips 14 are provided and are distributed at equal intervals. In actual operation, the water supply hose 8 is inserted into the plastic clips 14 to fix and store the water supply hose 8.

[0032] Further as Figure 1 As shown, it is worth noting that a locking bolt 11 is threaded onto the side wall of the fixed pipe 10, and the inner end of the locking bolt 11 contacts the outer surface of the connecting rod 12. In actual operation, when the water sprayer 13 is removed and held for watering, the locking bolt 11 is loosened, and the connecting rod 12 can be pulled out from the fixed pipe 10. This allows the water sprayer 13 to be fixed on the fixed pipe 10 for watering, or the connecting rod 12 to be held for easy movement of the water sprayer 13 for convenient watering, making it convenient to use.

[0033] Further as Figure 1 As shown, it is worth noting that the bottom of the base plate 3 is connected to a caster wheel 4. There are multiple caster wheels 4, which are symmetrically distributed. In actual operation, the caster wheels 4 facilitate the movement of the base plate 3, allowing it to be moved for watering.

[0034] Further as Figure 1 As shown, it is worth noting that two symmetrically distributed connecting plates 6 are fixed at the end of the base plate 3 away from the fixed pipe 10, and a push rod 7 is fixed at the top of the two connecting plates 6. In actual operation, the base plate 3 can be moved by pushing the push rod 7 to carry out mobile irrigation.

[0035] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that two symmetrically distributed protrusions 202 are fixed on the top of the water tank 5. A lead screw 201 is rotatably connected between the two protrusions 202. A lead screw nut 204 is threaded onto the side of the lead screw 201. A connecting rod 206 is fixed to the lead screw nut 204. A rotating seat 207, which is rotatably connected to the column rod 208, is fixed to the bottom end of the connecting rod 206. A sliding groove 205 is provided on the top surface of the water tank 5. A protrusion that slides and adapts to the sliding groove 205 is fixed to the bottom end of the lead screw nut 204. A servo motor 203 is fixed on the side of the protrusion plate 202. The output end of the servo motor 203 is fixed to one end of the lead screw 201. In use, the output end of the servo motor 203 drives the lead screw 201 to rotate. The movement of the lead screw nut 204 is guided and limited by the cooperation of the protrusion and the slide groove 205. Thus, the rotating lead screw 201 drives the lead screw nut 204 to reciprocate. In turn, the lead screw nut 204 drives the connecting rod 206, the rotating seat 207 and the column rod 208 to reciprocate synchronously.

[0036] This solution includes the following working process: During irrigation, water from the water tank 5 is pumped into the spray nozzle 13 via the water delivery hose 8 by the water pump 9. The water is then sprayed out from the evenly distributed spray holes 15 for irrigation. The base plate 3 can be moved by pushing the push rod 7 for mobile irrigation. To adjust the irrigation water flow, the threaded sleeve 104 is rotated, which pushes the adjusting sleeve 101 to move on the spray nozzle 13. As the adjusting sleeve 101 moves, it moves the adjusting hole 102, thereby adjusting the water flow. The size of the nozzle 15 is adjusted to control the water flow, allowing for appropriate water flow to be adjusted according to the different plants being watered, thus saving water. When the water sprayer 13 is removed for hand-held watering, the locking bolt 11 is loosened, allowing the connecting rod 12 to be pulled out of the fixing pipe 10. This allows the water sprayer 13 to be either fixed to the fixing pipe 10 for watering or easily moved by hand using the connecting rod 12 for convenient watering. The output of the servo motor 203 drives the lead screw 201 to... The screw 201 rotates, and the movement of the lead screw nut 204 is guided and limited by the cooperation of the protrusion and the slide groove 205. The rotating lead screw 201 drives the lead screw nut 204 to reciprocate, which in turn drives the connecting rod 206, the rotating seat 207, and the column rod 208 to reciprocate synchronously. During the reciprocating movement of the column rod 208, the gear 211 moves relative to the rack plate 210. The cooperation between the rack plate 210 and the gear 211 ensures that the column rod 208 reciprocates synchronously. The rotation causes multiple blades 209 on the column 208 to continuously agitate the water-fertilizer mixture inside the water tank 5, preventing the sedimentation of some components and effectively improving the mixing uniformity of the water-fertilizer mixture inside the water tank 5. This ensures that the water-fertilizer mixture inside the water tank 5 always maintains a good mixing effect. The constantly moving blades 209 continuously circulate and agitate multiple positions at the bottom of the water tank 5, and the direction of the blades 209 constantly switches back and forth, avoiding the generation of unidirectional vortex during agitation, further improving the mixing uniformity of the water-fertilizer mixture.

Claims

1. A water and fertilizer irrigation device for a forestry seedling greenhouse, comprising a base plate (3), characterized in that, A fixing pipe (10) is fixed to the top of the base plate (3). A connecting rod (12) is coaxially sleeved inside the fixing pipe (10). A water spray tube (13) is fixed to the end of the connecting rod (12) away from the fixing pipe (10). A water spray hole (15) is opened through the side wall of the water spray tube (13). Multiple water spray holes (15) are arranged in a ring and are evenly distributed. A water flow regulating mechanism (1) is slidably sleeved on the outside of the water spray tube (13). A water tank (5) and a water pump (9) are fixed to the top of the base plate (3). The input end of the water pump (9) is connected to the inside of the water tank (5). The output end of the water pump (9) is connected to a water delivery hose (8). The end of the water delivery hose (8) away from the water pump (9) is connected to the inside of the spray nozzle (13). A liquid equalization assembly (2) is provided at the bottom of the water tank (5). The liquid equalization assembly (2) includes a movable column (208) located at the bottom of the water tank (5). Multiple blades (209) are fixed on the side of the column (208) at equal intervals. A gear (211) is fixed on one end of the column (208). A rack plate (210) that meshes with the gear (211) is fixed on the inner side wall of the bottom end of the water tank (5).

2. The water and fertilizer irrigation device for forestry seedling cultivation greenhouses according to claim 1, characterized in that, The water flow regulating mechanism (1) includes an regulating sleeve (101) that is slidably sleeved on the outside of the spray tube (13). The regulating sleeve (101) has a regulating hole (102) that is distributed in a straight line with the spray hole (15) on its side. The regulating hole (102) is the same size as the spray hole (15). There are multiple regulating holes (102) that are distributed in a ring at equal intervals. The outer surface of the end of the spray tube (13) near the connecting rod (12) is threaded with a threaded sleeve (104). The end of the spray tube (13) away from the connecting rod (12) is fixed with a limiting plate (105). The regulating sleeve (101) is disposed between the limiting plate (105) and the threaded sleeve (104). The two sides of the limiting plate (105) and the regulating sleeve (101) that are close to each other are fixed with springs (103). There are multiple springs (103) that are distributed in a ring at equal intervals.

3. The water and fertilizer irrigation device for forestry seedling cultivation greenhouses according to claim 1, characterized in that, The outer surface of the connecting rod (12) is fixed with plastic buckles (14), and multiple plastic buckles (14) are provided, and the multiple plastic buckles (14) are distributed at equal intervals.

4. The water and fertilizer irrigation device for forestry seedling cultivation greenhouses according to claim 1, characterized in that, A locking bolt (11) is threaded onto the side wall of the fixed tube (10), and the inner end of the locking bolt (11) is in contact with the outer surface of the connecting rod (12).

5. A water and fertilizer irrigation device for forestry seedling cultivation greenhouses according to claim 1, characterized in that, The bottom end of the base plate (3) is connected to a caster wheel (4), and there are multiple casters wheel (4) arranged symmetrically.

6. A water and fertilizer irrigation device for forestry seedling cultivation greenhouses according to claim 5, characterized in that, Two symmetrically distributed connecting plates (6) are fixed at one end of the base plate (3) away from the fixed tube (10), and a push rod (7) is fixed at the top of the two connecting plates (6).

7. A water and fertilizer irrigation device for forestry seedling cultivation greenhouses according to claim 1, characterized in that, Two symmetrically distributed protrusions (202) are fixed on the top of the water tank (5). A lead screw (201) is rotatably connected between the two protrusions (202). A lead screw nut (204) is threaded onto the side of the lead screw (201). A connecting rod (206) is fixed on the lead screw nut (204). A rotating seat (207) rotatably connected to the column rod (208) is fixed on the bottom end of the connecting rod (206). A sliding groove (205) is provided on the top surface of the water tank (5). A protrusion that slides and adapts to the sliding groove (205) is fixed on the bottom end of the lead screw nut (204). A servo motor (203) is fixed on the side of one of the protrusions (202). The output end of the servo motor (203) is fixed to one end of the lead screw (201).